Your photo is of a pink version of a common alpine flower we see in the Pacific Northwest at elevations around 5,000 feet. We just call it Bistort.

____________________from L-Jay:
Yes, I’m amazed at some of the flowers that grow in the Tromsø Arctic Botanical Garden. They even have plants from China, Turkey, Australia and Brazil! Even though we have Arctic winters here we also have hot/humid summers – crazy! lol.